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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

The difference in one unit of Rockwell hardness number corresponds to a difference in the depth of indentation of ______________ mm ?

A 0.001

B 0.01

C 0.002

D 0.02

Review Detailed Answer

Correct Answer: 0.002

Electrical conductivities of semi-conductors are of the order of ______________ ohm/cm ?

A 10-3

B 103

C 10-15

D 1015

Review Detailed Answer

Correct Answer: 10-3

Maximum hardenability of steel depends upon its_______________________?

A Chemical composition

B Carbon content

C Grain size

D Alloying elements content

Review Detailed Answer

Correct Answer: Alloying elements content

Angular displacement can be measured suitably by a______________________?

A Shaft encoder

B Linear variable differential transducer (LVDT)

C Stroboscope

D Tachometer

Review Detailed Answer

Correct Answer: Shaft encoder

Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as_________________?

A Gr0.25, Gr

B Gr0.25, Gr0.33

C Gr, Gr0.25

D Gr0.33, Gr0.25

Review Detailed Answer

Correct Answer: Gr0.25, Gr

Titanium is added to molten aluminium alloys before casting for the purpose of_____________________?

A Grain refinement

B Increasing corrosion resistance

C Reducing porosity

D Improving fluidity

Review Detailed Answer

Correct Answer: Improving fluidity

Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxy-acetylene welding is ______________ Nm3 ?

A 0.5

B 1

C 1/3

D 2.5

Review Detailed Answer

Correct Answer: 2.5

A high pressure boiler generates steam at a pressure greater than _____________________ kg/cm2 ?

A 10

B 30

C 50

D 80

Review Detailed Answer

Correct Answer: 80

The best lubricants for a machine working at high temperature & load is_________________?

A Grease

B Solid lubricant

C Animal oils

D Mineral oils

Review Detailed Answer

Correct Answer: Solid lubricant

Blast furnace slag is mainly molten_________________?

A Sand

B Magnesium silicate

C Calcium silicate

D Iron pyrite

Review Detailed Answer

Correct Answer: Calcium silicate

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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All Topics 9594

The difference in one unit of Rockwell hardness number corresponds to a difference in the depth of indentation of ______________ mm ?

Electrical conductivities of semi-conductors are of the order of ______________ ohm/cm ?

Maximum hardenability of steel depends upon its_______________________?

Angular displacement can be measured suitably by a______________________?

Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as_________________?

Titanium is added to molten aluminium alloys before casting for the purpose of_____________________?

Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxy-acetylene welding is ______________ Nm3 ?

A high pressure boiler generates steam at a pressure greater than _____________________ kg/cm2 ?

The best lubricants for a machine working at high temperature & load is_________________?

Blast furnace slag is mainly molten_________________?